Changes in plasma concentration of Leptin, adiponectin and Resistin in karan-fries cows of high and medium body conditions during winter and summer seasons

摘要

The investigation was carried out to monitor changes in concentration of plasma adipokines in transition period of crossbred cows of high and medium body conditions during winter and summer seasons. For this study, 24 Karan-Fries cows, six each of medium body condition (MBC) and high body condition (HBC) were selected from National Dairy Research Institute (NDRI) livestock research centre in both the seasons. Blood samples were collected on 21st, 15th and 7th day prepartum, on day of calving and on 7th, 15th and 21st days postpartum. Concentration of leptin, adiponectin and resistin were estimated. Body condition score differed significantly (p < 0.05) between MBC and HBC cows in both the seasons. Body condition score (BCS) losses are higher in HBCcows as compared to MBC cows during early postpartum period in both the seasons. In winter as well as summer seasons, plasma levels of all the studied parameters were higher in HBC cows as compared to MBC cows. Plasma concentrations of leptin (P = 0.03)differed significantly between HBC and MBC cows. In summer mean value of adiponectin differed significantly (p <0.05) between day of calving and postpartum period in HBC cows but in case of MBC cows the mean differed significantly (p < 0.05) between prepartum, day of calving and postpartum. Resistin differed non-significantly between HBC and MBC cows in winter as well as summer.